Pilot transmission method in a wireless communication system
    3.
    发明授权
    Pilot transmission method in a wireless communication system 有权
    无线通信系统中的导频传输方法

    公开(公告)号:US08494067B2

    公开(公告)日:2013-07-23

    申请号:US13062623

    申请日:2009-08-26

    IPC分类号: H04K1/10

    摘要: A pilot transmission method in a wireless communication system is provided. The method includes: transmitting a first pilot for channel measurement through a first transmission section; and transmitting a second pilot for channel measurement through a second transmission section which is subsequent in time to the first transmission section, wherein the first transmission section and the second transmission section include a plurality of sub-bands, parts of the plurality of sub-bands use predetermined precoding whereas the remaining sub-bands use non-predetermined precoding, and any one of the first pilot and the second pilot is carried only on a sub-band which uses the predetermined precoding whereas the other pilot is carried on the entirety of the plurality of sub-bands.

    摘要翻译: 提供了一种无线通信系统中的导频发送方法。 该方法包括:通过第一传输部分发送用于信道测量的第一导频; 并通过第二传输部分发送用于信道测量的第二导频,所述第二传输部分随后在第一传输部分中,其中第一传输部分和第二传输部分包括多个子带,多个子带的部分 使用预定的预编码,而剩余的子带使用非预定的预编码,并且第一导频和第二导频中的任何一个只在使用预定的预编码的子带上承载,而另一个导频被携带在整个 多个子带。

    Method for allocating reference signals in MIMO system
    5.
    发明授权
    Method for allocating reference signals in MIMO system 有权
    MIMO系统中分配参考信号的方法

    公开(公告)号:US08400907B2

    公开(公告)日:2013-03-19

    申请号:US13439828

    申请日:2012-04-04

    IPC分类号: H04J11/00

    摘要: A user equipment (UE) receiving a plurality of reference signals in a wireless multiple-input multiple-output (MIMO) communication system includes a transceiver configured for receiving the plurality of reference signals for multiple antennas in a sub-frame, the sub-frame including a plurality of Orthogonal Frequency Division Multiplexing (OFDM) symbols in a time domain over a plurality of sub-carriers in a frequency domain. A first array is repeated in the frequency domain on a first OFDM symbol of the sub-frame, a second array is repeated in the frequency domain on a second OFDM symbol of the sub-frame and a third array is repeated in the frequency domain on a third OFDM symbol of the sub-frame, and each of the first, second and third arrays consists of six contiguous symbols in the frequency domain.

    摘要翻译: 在无线多输入多输出(MIMO)通信系统中接收多个参考信号的用户设备(UE)包括:收发器,被配置为在子帧中接收多个天线的多个参考信号,子帧 包括在频域中的多个子载波上的时域中的多个正交频分复用(OFDM)符号。 在子帧的第一OFDM符号上的频域中重复第一阵列,在子帧的第二OFDM符号上在频域中重复第二阵列,并且在频域上重复第三阵列 子帧的第三OFDM符号,并且第一,第二和第三阵列中的每一个由频域中的六个相邻符号组成。

    METHOD FOR TRANSMITTING DATA IN MULITIPLE ANTENNA SYSTEM
    7.
    发明申请
    METHOD FOR TRANSMITTING DATA IN MULITIPLE ANTENNA SYSTEM 有权
    用于在多个天线系统中发送数据的方法

    公开(公告)号:US20120213310A1

    公开(公告)日:2012-08-23

    申请号:US13462731

    申请日:2012-05-02

    IPC分类号: H04B7/06 H04L27/28

    CPC分类号: H04B7/0413

    摘要: A method of sending data in a multiple antenna system includes the steps of generating a transmission signal by applying channel-dependent precoding to a first antenna cluster and a second antenna cluster, each comprising a plurality of antennas, wherein the channel-dependent precoding is performed by a precoding weight matrix in which a precoding weight for each of the antenna clusters has a block diagonal form and the precoding weight is represented by P×V for a number of transmission antennas P, included in each of the antenna clusters, and a number of layers V applied to each of the antenna clusters (P and V are an integer greater than 0) and sending the transmission signal.

    摘要翻译: 在多天线系统中发送数据的方法包括以下步骤:通过对第一天线簇和第二天线簇应用与频道相关的预编码来产生发射信号,每个天线簇包括多个天线,其中执行与频道相关的预编码 通过预编码权重矩阵,其中每个天线簇的预编码权重具有块对角线形式,并且对于包括在每个天线簇中的多个发射天线P,并且预编码权重由P×V表示,并且数字 的层V施加到每个天线簇(P和V是大于0的整数)并发送发送信号。

    Wireless Communication System for High-Speed Vehicle Travelling Over Fixed Path
    8.
    发明申请
    Wireless Communication System for High-Speed Vehicle Travelling Over Fixed Path 有权
    用于高速车辆在固定路径上行驶的无线通信系统

    公开(公告)号:US20120184317A1

    公开(公告)日:2012-07-19

    申请号:US13498726

    申请日:2010-10-15

    IPC分类号: H04W72/04

    摘要: The present invention discloses a method for transmitting a same pilot sequence from a transmitting end to a receiving end in a multi-antenna wireless communication system. In particular, the method comprises the steps of: setting an identical pilot pattern in a plurality of transmitting antennas, allocating respectively different pilot sequences to the set pilot patterns, and transmitting the allocated pilot sequences to the receiving end, wherein at least one of the transmitting antennas forms a valid communication link with one of the receiving antennas. Here, when there is a plurality of valid communication links, the plurality of communication links are mutually independent.

    摘要翻译: 本发明公开了一种在多天线无线通信系统中从发送端向接收端发送相同导频序列的方法。 特别地,该方法包括以下步骤:在多个发送天线中设置相同的导频模式,将不同的导频序列分配给所述设定的导频模式,以及将所分配的导频序列发送到所述接收端,其中, 发射天线与接收天线之一形成有效的通信链路。 这里,当存在多个有效的通信链路时,多个通信链路是相互独立的。

    TRANSMISSION METHOD OF DOWNLINK REFERENCE SIGNAL AND APPARATUS THEREOF
    9.
    发明申请
    TRANSMISSION METHOD OF DOWNLINK REFERENCE SIGNAL AND APPARATUS THEREOF 有权
    下行参考信号的传输方法及其设备

    公开(公告)号:US20120039287A1

    公开(公告)日:2012-02-16

    申请号:US13263334

    申请日:2010-04-12

    IPC分类号: H04W72/04

    CPC分类号: H04L5/0053

    摘要: The present invention relates to a wireless communication system, and provides a method and an apparatus for transmitting a downlink reference signal in the wireless communication system. The method for enabling a base station to transmit the reference signal to a terminal using layers of 8 or less in accordance with one embodiment of the present invention comprises the steps of: transmitting data for the layers of 8 or less through a data domain of a downlink sub frame; and transmitting a reference signal for the layers of 8 or less on a fixed OFDM symbol of the downlink sub frame, wherein the reference signal is a DRS (Dedicated Reference Signal) which demodulates the data for the layers of 8 or less, and the reference signal for the layers of 8 or less is separated into 1st and 2nd groups, and reference signals of the 1st and 2nd groups can be multiplexed in a CDM (Code Division Multiplexing) method on one resource element, respectively.

    摘要翻译: 无线通信系统技术领域本发明涉及一种无线通信系统,提供了一种用于在无线通信系统中发送下行链路参考信号的方法和装置。 根据本发明的一个实施例,使基站能够使用8以下的层将参考信号发送到终端的方法包括以下步骤:通过数据域的数据域传送8或更小层的数据 下行子帧; 并且在下行链路子帧的固定OFDM符号上发射8或更小层的参考信号,其中参考信号是对8或更小层的数据进行解调的DRS(专用参考信号),参考信号 8或更小层的信号分为第1组和第2组,第一组和第二组的参考信号可以分别以一个资源元素的CDM(码分多路复用)方式复用。